Type 2032
BURKERT Type 2933 manually operated diaphragm valve consists of a manually operated actuator, a diaphragm, and a 2-way valve body. The manual actuator with a plastic or stainless steel handwheel is available with a diaphragm bonnet made of stainless steel or plastic, ensuring use in hygienic or aggressive ambient conditions. The flow-optimised valve body with minimum dead space enables high flow values and a wide range of possible applications.
The valve body and the diaphragms are available in all common materials and variants. The actuator has a compact, autoclavable design and is compatible with all other Bürkert diaphragm valves. An explosion-proof ATEX/IECEx device variant is available. The manual actuator is equipped with an integrated visual position indicator, a reproducible stroke scale, and an adjustable closing limiter.
General Technical Data
| Product properties | Description |
|---|---|
| Forged steel valve body (VS) | Forged stainless steel 1.4435 in accordance with BN2 DIN EN 10222-5, F316L in accordance with ASTM A182/A182M and 316L in accordance with ASME BPE |
| Tube valve body (VP) | Stainless steel tube 1.4435-BN2 / UNS S31603 (316L) according to DIN 11866, ASTM A269 / A270, DIN EN 10217-7 / 10216-5 |
| Cast valve body (VG) | Stainless steel precision casting 1.4435 / 316L |
| Plastic valve body (PW, PV, PP, PD) | PVC-C, PVC-U, PP, PVDF |
| Diaphragm | EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER) |
| Actuator | Stainless steel/PPS, PPS/PPS, stainless steel/stainless steel |
| Diaphragm size | 8...100 |
| Operating medium | Neutral gases and liquids, highly purified, sterile, aggressive or abrasive mediums |
| Nominal diameter | DN 06...DN 100 (1/8"...4") |
Ambient Temperature
The ambient temperature for the actuator (diaphragm bonnet/handwheel) made of Stainless steel/PPS, PPS/PPS, or stainless steel/stainless steel is -10...+130 °C (short-term up to +150 °C), and it is autoclavable.
Approvals and Conformities
- Explosion protection: ATEX / IECEx (Category 2 device suitable for zone 1/21 and zone 2/22). EPS 18 ATEX 2 008 X II 2G Ex h IIC T4...T2 Gb / II 2D Ex h IIIC T135 °C...T300 °C Db.
- 3-A Sanitary Standards Inc.: The products comply with 3-A Sanitary Standards Inc (3-A SSI) as per certificate.
- FDA: The diaphragms made of EPDM, PTFE/EPDM, advanced PTFE/EPDM, and laminate of GYLON® and EPDM comply with the Code of Federal Regulations published by the FDA.
- USP: The diaphragms are tested according to USP Class VI.
- EC Regulation 1935/2004: Suitable for use with food and beverages.
- TA Luft: Technical instruction on air quality control.
Material Specifications
| No. | Element | Material |
|---|---|---|
| 1 | Handwheel | Polyphenylene sulphide (PPS), stainless steel 1.4308 |
| 2 | Visual position indicator | Polyamide (PA), Stainless steel 1.4305 |
| 3 | Valve spindle | Stainless steel 1.4305 |
| 4 | Diaphragm bonnet | Stainless steel 1.4308, polyphenylene sulphide (PPS) |
| 5 | Diaphragm | EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER) |
Dimensions
Manual Actuator (Diaphragm size 8...25)
| Position open | Position closed |
|---|---|
 |  |
| Diaphragm size | H1 | H2 | ∅ B |
|---|---|---|---|
| 8 | 54 | 49 | 35 |
| 15 | 84 | 78 | 45 |
| 20 | 95 | 86 | 45 |
| 25 | 101 | 90 | 45 |
Forged Steel Valve Body (VS) with Welded Connection
| Diaphragm size | Port connection DN | ∅D1 | s | L | h | H |
|---|---|---|---|---|---|---|
| DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B | ||||||
| 8 | 8 | 13.5 | 1.6 | 90 | 9.3 | 18.8 |
| 15 | 15 | 21.3 | 1.6 | 110 | 12.05 | 23.75 |
| 20 | 20 | 26.9 | 1.6 | 119 | 16.0 | 30.3 |
| 25 | 25 | 33.7 | 2.0 | 129 | 19.0 | 37.0 |
| 40 | 40 | 48.3 | 2.0 | 161 | 27.6 | 52.4 |
| 50 | 50 | 60.3 | 2.0 | 192 | 35.5 | 68.3 |
| 80 | 80 | 88.9 | 2.3 | 250 | 51.0 | 98.1 |
| 100 | 100 | 114.3 | 2.3 | 295 | 63.5 | 127.0 |
Tube Valve Body (VP) with Welded Connection
| Diaphragm size | Port connection DN | ∅D1 | s | L | h | H |
|---|---|---|---|---|---|---|
| DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B | ||||||
| 8 | 8 | 13.5 | 1.6 | 90 | 9.85 | 16.6 |
| 15 | 15 | 21.3 | 1.6 | 110 | 14.35 | 25.0 |
| 20 | 20 | 26.9 | 1.6 | 119 | 17.15 | 30.45 |
| 25 | 25 | 33.7 | 2.0 | 129 | 20.55 | 37.4 |
| 40 | 40 | 48.3 | 2.0 | 161 | 29.35 | 53.5 |
| 50 | 50 | 60.3 | 2.0 | 192 | 35.35 | 65.5 |
Performance Specifications
Maximum Permitted Medium Pressure
| Diaphragm size | Maximum permitted medium pressure [bar] (EPDM/FKM) | Maximum permitted medium pressure [bar] (PTFE/advanced PTFE/GYLON®) |
|---|---|---|
| 8 to 40 | 10 | 10 |
| 50 | 7 / 10 | 7 / 10 |
| 65 to 80 | 10 | 10 |
| 100 | 6 | 6 |
Pressure Temperature Diagram for Plastic Body
WARNING
This information is important for material selection. Observe the permissible operating pressure depending on the medium temperature.
Installation
DANGER
Risk of injury due to high pressure and escaping medium. Switch off the pressure before working on the device or system. Vent or empty the lines.
Information for the correct installation position
Installation position: any, preferably actuator facing up.
It is the responsibility of the installer and the operator to ensure self-draining. The angle of inclination should correspond to the angle of inclination of the pipeline. For the pipeline, we recommend the inclination angles according to the valid ASME BPE.
Tightening Torques for the Screws
| Diaphragm size | Tightening torques [Nm] (VS, VG, PP, PVC-C, PVC-U, PVDF - EPDM/FKM) | Tightening torques [Nm] (VS, VG, PP, PVC-C, PVC-U, PVDF - PTFE) |
|---|---|---|
| 8 | 2 | 2.5 |
| 15 | 3.5 | 4 |
| 20 | 4 | 4.5 |
| 25 | 5 | 6 |
| 32 | 6 | 8 |
| 40 | 8 | 10 |
| 50 | 12 | 15 |
| 65 | 20 | 30 |
| 80 | 30 | 40 |
| 100 | 40 | 40 |
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